Automatic firearms and safety mechanisms for automatic firearms are disclosed.
In an illustrated example, a disclosed firearm includes a breech mounted for movement
between a fired position and a cocked position, a breech catch having an inoperative
position and a locked position, and a sear arm mounted to the breech catch. The
disclosed firearm also includes a safety to permit at least one of the sear arm
and the breech catch to move out of a motion path of the breech when the breech
moves from the fired position toward the cocked position, but to maintain the sear
arm in engagement with the breech when the breech is in the cocked position and
the firearm is dropped
